342 A Monograph of the Myxogastres. 



Reticularia vaporaria, Chev., Fl. Par., i., 342 (1827). 

 Aethalium violaceum, Spr. Sys., iv., 533 (1827). 

 Aethalium candidum, Schlecht., in Spr. Sys., iv., 533. 

 Aethalium scpticum, Fr., S. M., iii., 93 (1829), Cooke, Hdbk., 



n. 1101, a.flavum, 1. cinnamomeum, c. rufum, d. violaceum. 

 Fuligo carnosa, Duby., Bot. Gall, ii., 863 (1830). 

 Fuligo hortensis, Duby., Bot. Gall, ii., 863 (1830). 

 Aethalium rufum, Wallr., Fl. Germ., 2097 (1833). 

 Aethalium septicum, b. vaporarium, Rabh., Fl. Germ., 2133 



(1844). 



Aethalium ferrincola, Schwz. Am., 2372 (1834). 

 Reticularia rufa, Schwz. Am., 2377 (1834). 

 Aethalium rufum, Alexandr., t. 11, f. 6 11 (1872). 

 Aethalium vaporarium, Fr., Berk., in Gard. Chron. (1860), p. 



409 ; Cooke, Hdbk., n. 1102. 



Fuligo stercorifonnis, Mass. 



Aethalium resembling the dung of some young animal, size 

 and shape variable, most frequently sausage-shaped, unequally 

 gibbous, attached to the substratum throughout its length by a 

 broad base ; covered with a very friable, seceding, white cortex 

 abounding in lime; capillitium greyish-white, tubes with numerous 

 swollen portions containing granules of lime, combined to form 

 a network; hypothallus rudimentary; spores ellipsoid, tyrown, 

 densely covered with minute warts, 10'5 18'5 + 9'3 14'5 /LI. 



Aethaliopsis stercoriformis, Zopf, p. 150, fig. 26, vii. ; Sacc., 

 Syll., vii., 1, n. 1232. 



On rotten leaves. Germany. 



Zopf founded the genus Aethaliopsis on the mistaken sup- 

 position that the ellipsoid spores distinguished it at once amongst 

 the Lithodermeae. 



Fuligo ochracea, Peck. 



Sporangia variously interwoven to form a small aethalium, 

 springing from a delicate, whitish hypothallus, seated on a broad 

 91 narrow base ; common cortex delicate, covered at first with 



